How to reach:
To reach the tidal bench marks, from the Guam airport travel east on Chalan Passajeros (Route 10A) for 2.9 km (1.8 mi) where it dead ends at Marine Drive (Route 1), turn left and proceed on Marine Drive for approximately 19 km (12 mi) until you reach the main gate of the Naval Station Guam. Obtain a visitor's pass and continue on Marine Drive for 2.9 km (1.8 mi) until you reach San Luis Road, turn right (east) and follow to the boat channel on your right to its entrance. The bench marks are located between Small Boat Channel and Fleet Landing Channel. The tide house is located on the east corner of the entrance to the Sunny Cove Marina boat harbor.